What is an example of something going through the process of erosion and depostion?

When the waves beat onto a rocky shore, the rocks are weathered, the waves carry the sediment away, then deposit it further down the beach.

Define a constructive force, and give an example.

Constructive forces build up the land.An example is whenlava hardens and

the land mass gets larger.

Describe what a destructive force is and give an example.

Destructive forces are forces that destroy the land.Wind, water and ice are examples

What landform is both constructive and destructive?

A volcano.

What was the of the supercontinent that existed millions of years ago?

Pangea

How do humans control floods?

Dams are structures built across a river to control the flow.They hold back floodwaters at times of heavy rainfall.They can be built out of soil, sand, or steel and concrete. Levees are mounds of earth built along the sides of a river.Dams and levees hold back sediment that rivers carry so that sediment in no longer available to form floodplains and beaches.

How do humans reclaim beaches?

A groin is a structure built at right angles to the beach that traps sand moving along with longshore currents.Seawalls are structures built parallel to the shore to absorb the pounding of waves.Beach nourishment involves reclaiming beaches that erosion has eaten away.Sands from the ocean or nearby rivers are placed on the beach to rebuild it.

How do humans prevent soil erosion?

Storm drain management is a system of drains that prevent flooding during heavy rainstorms.The drains capture the water and move it off the roads and the other land.Urban storm water runoff contains sediment, harmful chemicals, oil, and road salts that pollute the earth and causes shock loading that kills fish and causes algal blooms.

How do scientists prepare humans for earthquakes?

A seismograph measures and detects earthquakes.It makes a record of the movement called a seismogram which predict where an earthquake is most likely to occur.People cannot build new structures on or near faults, and they can make rules to make homes and other structures better able toresist damage.

How can scientist prepare humans for volcanoes?

Scientists can also predict when a volcano will be become activebecause the sides of the volcano will swell and instruments can detect changes when gases are released as the magma begins to rise.

What is a Seismologist?

A scientist who studies earthquakes

What is a seismograph?

combines a measures the magnitude of earthquakes

What is lava?

Molten rock that flows from a volcano onto Earth's surface

What is a dam?

used for flood control a dam is a structure built across a stream or river to retain water

What is a levee?

Used for controling floods, a levee is a mound of earth that is built along the sides of rivers.

What is a Jetty?

A jetty is used for beach reclamation and is a wall like structure that stick out into the ocean to prevent sand from being carried away.

As longshore currents move along the coasts the jetty traps sand and small rocks.

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